How To Fix /SAPAPO/OM_ERROR2218 - Doubled key error when adding a work center

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/OM_ERROR2 -

• Message number: 218

• Message text: Doubled key error when adding a work center

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/OM_ERROR2218 - Doubled key error when adding a work center ?

  The SAP error message /SAPAPO/OM_ERROR2218 indicates a "Doubled key error" when trying to add a work center in the SAP Advanced Planning and Optimization (APO) module. This error typically arises when there is an attempt to create a work center that already exists in the system, leading to a conflict in the unique key constraints.
  Cause:
  
  Duplicate Work Center: The most common cause of this error is that the work center you are trying to add already exists in the system. This could be due to a previous entry that was not properly deleted or an attempt to create a work center with the same key (ID).
  Data Consistency Issues: There may be inconsistencies in the master data, especially if there have been recent changes or migrations.
  Incorrect Configuration: The configuration settings for work centers may not be set up correctly, leading to conflicts.
  
  Solution:
  
  
  Check Existing Work Centers: Before adding a new work center, check the existing work centers in the system to ensure that the one you are trying to create does not already exist. You can do this by navigating to the relevant transaction code (e.g., C202 for work center display).
  
  
  Use Unique Identifiers: Ensure that the work center ID you are trying to create is unique. If you find that a work center with the same ID exists, consider using a different ID.
  
  
  Delete or Modify Existing Work Center: If the existing work center is no longer needed, you can delete it. If it needs to be modified, make the necessary changes instead of creating a new one.
  
  
  Data Consistency Check: Run consistency checks on your master data to identify any discrepancies. This can often be done through transaction codes like CNS0 or CNS1 for checking and correcting master data.
  
  
  Consult Documentation: Review SAP documentation or notes related to work center creation and management to ensure that you are following the correct procedures.
  
  
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for assistance. They may provide specific notes or patches that address this error.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as C202 (Display Work Center), C201 (Create Work Center), and C203 (Change Work Center).
  SAP Notes: Check for any SAP Notes related to work center management and the specific error message. SAP Notes can provide insights into known issues and fixes.
  Master Data Management: Understanding how master data is managed in SAP APO can help prevent similar issues in the future. Consider training or resources on master data governance.
  
  By following these steps, you should be able to resolve the /SAPAPO/OM_ERROR2218 error and successfully manage your work centers in SAP APO.